[INFO] cloning repository https://github.com/ChoateProgrammingUnion/housing-lottery-optimization [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChoateProgrammingUnion/housing-lottery-optimization" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoateProgrammingUnion%2Fhousing-lottery-optimization", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoateProgrammingUnion%2Fhousing-lottery-optimization'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c563a27f1c600a199aa79f61a9b659db5f48f283 [INFO] testing ChoateProgrammingUnion/housing-lottery-optimization against try#c066bf6804adc55193b71afdff6a56922f4a8689+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_in_2025-retry-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoateProgrammingUnion%2Fhousing-lottery-optimization" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization [INFO] finished tweaking git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization [INFO] tweaked toml for git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization on toolchain c066bf6804adc55193b71afdff6a56922f4a8689 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 469fecacb626613b34c5b472c325bb4993f6e870909794c39fe37d3d5a7ba82e [INFO] running `Command { std: "docker" "start" "-a" "469fecacb626613b34c5b472c325bb4993f6e870909794c39fe37d3d5a7ba82e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "469fecacb626613b34c5b472c325bb4993f6e870909794c39fe37d3d5a7ba82e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "469fecacb626613b34c5b472c325bb4993f6e870909794c39fe37d3d5a7ba82e", kill_on_drop: false }` [INFO] [stdout] 469fecacb626613b34c5b472c325bb4993f6e870909794c39fe37d3d5a7ba82e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] f18e6b9431e5db760c91aca67366b3f61102d1d7922a9203e3de777831a7b103 [INFO] running `Command { std: "docker" "start" "-a" "f18e6b9431e5db760c91aca67366b3f61102d1d7922a9203e3de777831a7b103", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling ppv-lite86 v0.2.9 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling regex-syntax v0.6.18 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling linked-hash-map v0.5.3 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling array2d v0.2.1 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling yaml-rust v0.4.4 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling housing-optimization v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `extra_room_float` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | let extra_room_float: f64 = 0.1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extra_room_float` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extra_room_constant` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | let mut extra_room_constant: usize = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extra_room_constant` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other_constant` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | let mut other_constant: f64 = 0.5; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_constant` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut extra_room_constant: usize = 0; [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:41:13 [INFO] [stdout] | [INFO] [stdout] 41 | let mut other_constant: f64 = 0.5; [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_seed` [INFO] [stdout] --> src/optimizers/mcmcswap/mcmc_swap.rs:166:26 [INFO] [stdout] | [INFO] [stdout] 166 | fn reseed(&mut self, new_seed: u64) {} [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_seed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `objective` is never used [INFO] [stdout] --> src/optimizers.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 18 | pub trait Optimizer { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 21 | fn objective(&self) -> f64; // the objective function to optimize [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `size` is never used [INFO] [stdout] --> src/optimizers/mcmc/minimax_swap.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl MinimaxSwap { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 18 | fn size(&self, schedule: Vec>) -> (Vec>, usize) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/optimizers/network.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Node { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 11 | pub name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/lib/rustlib/x86_64-unknown-linux-musl/lib/self-contained/rcrt1.o" "/lib/rustlib/x86_64-unknown-linux-musl/lib/self-contained/crti.o" "/lib/rustlib/x86_64-unknown-linux-musl/lib/self-contained/crtbeginS.o" "/tmp/rustcLQygEU/symbols.o" "<17 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/{librand-acbef01b068283e7.rlib,librand_chacha-1e9ce603e679f1bc.rlib,libppv_lite86-fe4748cb9a4a903e.rlib,librand_core-af31ddfb116860d3.rlib,libgetrandom-3d65a302698658d7.rlib,libpetgraph-8deb4b4aa6ed765b.rlib,libindexmap-9de7c312a45aff79.rlib,libhashbrown-aed633c8184090a0.rlib,libfixedbitset-9882e188145b7e24.rlib,libarray2d-1423a9663f7b647a.rlib,libenv_logger-c37e551958e86a16.rlib,libtermcolor-2ea4a539468aa6b0.rlib,libatty-d748efa40f61def5.rlib,libhumantime-8d8e09eea03a30a0.rlib,libquick_error-022321fe562bcedb.rlib,liblog-9eb3e35e0f591e8b.rlib,libcfg_if-2d17986ae484e939.rlib,libregex-430e00fca47259de.rlib,libthread_local-c6b88a4b7954c5cd.rlib,liblazy_static-4b136fc9bfbd2c4b.rlib,libregex_syntax-cb353ff079726287.rlib,libaho_corasick-61bf4caab8600cce.rlib,libmemchr-66f21ea766679294.rlib,libchrono-d4e1904ce46eb771.rlib,libnum_integer-dbc4ab4b3cdc2c97.rlib,libnum_traits-4527e781012d634e.rlib,libtime-f3aeb33854730ec4.rlib,liblibc-ef7905a6c382df03.rlib,libyaml_rust-4dd07077b04565dc.rlib,liblinked_hash_map-0f2b9de21f5e8ed8.rlib}.rlib" "/lib/rustlib/x86_64-unknown-linux-musl/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*}.rlib" "-lunwind" "/lib/rustlib/x86_64-unknown-linux-musl/lib/{libcfg_if-*,liblibc-*}.rlib" "-lc" "/lib/rustlib/x86_64-unknown-linux-musl/lib/{librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/tmp/rustcLQygEU/raw-dylibs" "-Wl,-Bdynamic" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-nostartfiles" "-L" "/lib/rustlib/x86_64-unknown-linux-musl/lib/self-contained" "-L" "/lib/rustlib/x86_64-unknown-linux-musl/lib" "-o" "/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/housing_optimization-44f2df8022a850e1" "-Wl,--gc-sections" "-static-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs" "/lib/rustlib/x86_64-unknown-linux-musl/lib/self-contained/crtendS.o" "/lib/rustlib/x86_64-unknown-linux-musl/lib/self-contained/crtn.o" [INFO] [stdout] = note: some arguments are omitted. use `--verbose` to show all linker arguments [INFO] [stdout] = note: /usr/bin/ld: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/libgetrandom-3d65a302698658d7.rlib(getrandom-3d65a302698658d7.getrandom.cca278e80fb4fe2-cgu.0.rcgu.o): in function `getrandom::util_libc::open_readonly': [INFO] [stdout] /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/getrandom-0.1.15/src/util_libc.rs:112:(.text._ZN9getrandom9util_libc13open_readonly17hc224e8524e837b27E+0x79): undefined reference to `open64' [INFO] [stdout] collect2: error: ld returned 1 exit status [INFO] [stdout] [INFO] [stdout] = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified [INFO] [stdout] = note: use the `-l` flag to specify native libraries to link [INFO] [stdout] = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-lib) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `housing-optimization` (bin "housing-optimization") due to 1 previous error; 9 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f18e6b9431e5db760c91aca67366b3f61102d1d7922a9203e3de777831a7b103", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f18e6b9431e5db760c91aca67366b3f61102d1d7922a9203e3de777831a7b103", kill_on_drop: false }` [INFO] [stdout] f18e6b9431e5db760c91aca67366b3f61102d1d7922a9203e3de777831a7b103